this is an ondoing process but we're using our techniques and using our relationships with other governments to find out who did this and why they did it. >> just to recap there are at least three publicly known suspects. one killed in a raid by egyptians authorities in october. a second was arrested in egypt and there's a third suspect that's been held in to tunisia r two months. the attorney general defended the f.b.i. investigation saying there was more going on than meets the eye. >> you talk about one part of the investigation, an investigation that's ongoing and our efforts with regard to that specific part that you mentioned are indeed ongoing and we'll see how that develops. but there are a range of other things we're doing with regard to the benghazi incident we don't talk about. >> reporter: the real take away today is that there's a pretty tight lid among lawmakers on what was said in the briefings to bring them up to date on the status of the investigation. about a week from today we may get the first public it testimony from the secretary of state. today that department sugg the